A+ Pop Quiz: This probably isn’t the right time Which of the following would be the BEST way to connect a computer with a manual voltage switch to an unknown power source? A) Try the different voltage settings until one works B) Set the computer to the lower voltage and use a transformer between the computer and power source C) Use an external power supply D) Use the highest voltage setting on the computer E) Use a multimeter and set the power supply to the same voltage F) I love fireworks